Durable Zero composite carrying case with a built-in combination lock; Adjustable handle extension Two high capacity 5.7 amp/hour rechargeable Ni-Cad batteries each providing 5 hours of continuous use per charge. These batteries now employ a drop-in design for easy installation and removal; Two quick charging battery chargers that will charge the 5.7 amp/hour batteries in approximately 6 hours; A detailed instruction manual; A black and white test panel for checking the retroreflectometer's calibration; Spare fuses. OPTIONAL ACCESSORIES Datalogger Datalogger Controller